Putrefaction-chamber.



My. KUSGH. PUTREFAGTION CHAMBER.

APPLICATION FILED JAN.27,1914.

1,128,329., Patented 3311.5,1915

2 SHEETS-SHEET l.

c @wlw M. KUSCH. PUTREPAOTION CHAMBER.

APPLICATION FILED JAN. 27, 1914.

Patented Jan. 5, 1915.

-2 SHEETS-SHEET 2.

Inverzor W/.25 Kaffe/1;

UNITED STATES PATENT OFFICE.

mAxx'Usc'H, or rmnnnnamnnannnanin, casualty.

PUTREFACTION-CHAMBER.

message.

application area vJanuary 27, 1914; serial No. 814,727.

` of thejconsiderable amount of fermenting mud which constantly forms it has been found preferable not to allow the precipitated mud v vin addition, that the gases which are important for enabling the mud tobe dried are still present insuiiiciently large quanti- Accordingly, I

`to putrefy in putrefaction mud` chambers directly connected with the settling chambers, but in 4separate p utrefaction chambers.

provide that the `fermenting mud which floats at the top of the sewage and is produced in large quantities at the beginning of the putrefaction is con'- tained in a sufficiently large chamber and,

tiesin th'epurified mud when the latter is run off'.

`According to my invention, the individual compartments in a putrefaction chamber are completely separated from one another by partitions provided at the bottom with normally closed openings, and are so arranged that the first compartment is relatively shallow but has a considerable area of water-level, while the following compart- Vments are successively, deeper and have a gradually diminishing area of water-level. When the chamber isin use the mud is conveyed from one compartment into the next not by means of freshly entering mud,but under the actiton of gravity from time to time as required by opening the said openings in the partitions.

One illustrative embodiment of the invention is represented by way ofexample in the accompanying drawing, wherein v Figure 1. is a longitudinal section, and Fig. 2 a top plan view showing one preerred form of my improved putrefaction chamber, and Fig. 3 is a plan view of a group of such chambers having a common mud discharge pipe. Figs. 4 and 5 are respectively a longitudinal section and a plan view of the putrefaction chamber -showing ySpecification of Letters Patent.

* natenteasanfaieiai dii'erent means` for drawing off the water.

abovev the` settled mud.

Referring to the drawmg, the putrefaction chamber A. is divided by partitions p, p,

intocompartments b, c and d. The mud is supplied through the pipe c into the first compartment b and begins to putrefy here,

a `floating layer of fermentinglmud'of considerable thickness being formed. After the gate-valve f, of the partition p has been opened the mud in process of putrefaction flows into the next compartment c where the putrefaction takes place in less putrid water and a smaller quantity of fermenting mud is formed. vAfter the gate-valve f., in the par-- tition p1 has been opened the mud iows into the next compartment cl in which it is located in practically purified water and therefore-hardly any fermenting mud is formed, but the putrefaction takes place only with thegeneration of gas and Vthe mud can therefore be completely purified. On opening thel gate-valve f3 the purified mud is discharged through Athe pipe ein known manner, for example under the pressure of water. Ob-

-viously the sizeof the putrefaction chamber must be such that the mud remains there- 1n for a suiiicient time, Aand the number of compartments, of which there must be at least two, will vary according to the nature of the mud .under treatment. If it .is necessary Ato draw oii' the turbid water above the mud thiscan bedone in known manner either from the one into the next compartment, or directlv from the individual compartmentsto outside the chamber. v

In Fig. 4 is illustrated a putrefaction chamber formed of several compartments divided by partitions as in Fig. l which for the better conveying of the mud from one compartment into the next the water level of the receiving compartment is preferably maintained at alower plane than in the compartment previously containing the mud, and the turbid water is drained from the higher into the lower compartment through overiow openings d1, d2, in the partitions p, p1, and nally through an overow d'3 from the lowermost of the compartments.

lin Fig. 5 instead of the water draining from one compartment into another, each compartment basan overflow as shown at d4, d5, d, to the outside of the putrefaction chamber and there discharge into a common outlet pipe d? Which carries the Water from the chamber.

I cla-im:-

1.4 A putrefaction'chamber having an outlet divided into a plurality of normally closed compartments adapted to be connected one to another, the cross-sectional area of the upper part of each compartment being greater than, and the depth thereof less than the corresponding area and depth of the compartment -next thereto nearer the outlet.

2. The combination of a plurality of pu` trefaction chambers each having an outlet opening into a common discharge chamber or space formed by the chambers, each chamber comprising va plurality ofl normally closed compartments adapted to open one into another, the cross-sectional area and the average depth of each compartment in any one chamber being respectively greater and less than the same dimensions of the 'compartment neXt thereto in the same chamber nearer the discharge chamber.

3. A putrefaction chamber having an outlet divided into a plurality of normally closed compartments adapted to be connected one to another, the cross-sectional area of the upper part of each compartment being greater than, and 4the depth thereof less than thecorresponding area and depth of the compartment next thereto nearer the outlet, andv each compartment having an overflow into the next thereto nearer -the outlet at successively' lower levels.v

In testimony Whereof,-1 afiix my signature in the presence of two witnesses.

MAX KUSCH. Witnesses: l

WOLDEMAR HAUPT, HENRY HASPER. 

